stainless steel, highly-polished surface, sturdy and No rust, corrode, fade or stain. Last forever just like the memory it represents Package includes: 1 angel wing charm + 1 keyring + 1 forever in my heart cylinder +1 round pendant +1set fill kit Double Use: You can necklace and keyring, use as pendant. Great family and to cherish loved Waterproof Design: Rubber sealing perfectly keep the inside contents safe and secure. No worry of losing your Wonderful Keepsakes and Memorial Jewelry: This cylinder pendant could be opened and holds small amount of dirt,special messages, hair, cremains & ashes